Los Angeles , California -LRB- CNN -RRB- -- Michael Jackson 's father filed a wrongful death lawsuit in federal court against Dr. Conrad Murray on Friday , the anniversary of the pop star 's death , Joe Jackson 's lawyer said .

The suit alleges that Murray gave paramedics and doctors false information about the `` polypharmacy '' of drugs Michael Jackson had been given and hindered efforts to revive him in an ambulance and at UCLA Medical Center , according to a copy obtained by CNN .

The suit said that `` other parties responsible for Michael Jackson 's death '' would be added but that the plaintiff `` has not yet gathered sufficient information regarding their potential liability or responsibility . ''

A complaint filed by Joe Jackson with the California medical board this month also named AEG , the company that was producing his son 's comeback concerts .

Murray was hired to serve as Jackson 's personal doctor two months before the London debut of the concerts were set .

The Los Angeles County coroner ruled that Michael Jackson 's death was caused by an overdose of propofol , a powerful anesthesia that Murray has acknowledged the pop star used to help him sleep .

Joe Jackson attorney Brian Oxman obtained a court order this year giving him medical records from UCLA Medical Center , where Michael Jackson died on June 25 , 2009 .

The suit also alleges that Murray delayed calling for paramedics for over an hour , after he found Jackson not breathing minutes after he injected him with propofol to help him fall asleep . The suit contends that Murray used the time to hide evidence of drugs he had been giving Jackson .

When the ambulance carrying Michael Jackson from his home arrived at the emergency room at 1:13 p.m. , he was identified as `` Soule Shaun , '' the suit said . He had `` no pulse , blood pressure , spontaneous respiration or heartbeat , '' it said .

Murray , who had taken over control of resuscitation efforts from paramedics , said nothing to emergency room doctors about the propofol or `` other drugs '' he had given Michael Jackson earlier in the day , it said .

It quoted a report written the next day by one of those doctors , who wrote that Murray told them `` the patient had been working long hours but had not been ill . ''

`` The only reported medications reported for the patient were valium and Flomax , '' Dr. Richelle Cooper wrote . `` There is no history of drug use by the patient as reported by Dr. Murray . ''

A police report said Murray told investigators two days later that `` he was afraid Michael Jackson was addicted to propofol . ''

`` He had a history of addiction , and the defendant was trying to wean him off the drugs , yet he told Dr. Cooper two days earlier that Michael Jackson had no drug use history , '' the suit said .

The toxicology results included in the autopsy report said the propofol level found in Michael Jackson 's body was equal to what would be used to sedate a patient for major surgery .

Murray , who has been charged with involuntary manslaughter in Michael Jackson 's death , did not give him that much of the anesthesia , his defense lawyer said recently .

`` There is no way that Dr. Murray pumped Michael Jackson full of propofol sufficient for major surgery , '' attorney Ed Chernoff said . `` No way . I would stake anything that I own on this fact . ''

The lawsuit contends that Jackson showed `` neurological , pulmonary , and amnesia signs '' in his final weeks as he rehearsed in Los Angeles for the London shows .

It said Jackson borrowed jackets from others and used a heater at rehearsals `` to control the shivering . ''

`` In May and June , 2009 , Michael Jackson was confused , easily frightened , unable to remember , obsessive , and disoriented , '' the suit said . `` He has impaired memory , a loss of appetite , and absence of energy . He was cold and shivering during the summer rehearsals for his show , and as shown in photographs and motion pictures of him , he uncharacteristically wore heavy clothing during the rehearsals , while other dancers wore scant clothing and were perspiring from the heat . ''

CNN 's Ted Rowlands contributed to this report .

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NEW : Wrongful death suit filed in federal court Friday

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Suit alleges Dr. Conrad Murray gave emergency room false information

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`` Other parties '' to be added to suit later , document says

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Jackson was admitted to hospital as `` Soule Shaun ''